Restaurant serving tray
FIG. 1 is a top perspective view of a restaurant serving tray showing our new design; 
     FIG. 2 is a top plan view thereof; 
     FIG. 3 is a sectional view taken upon the line 3--3 of FIG. 2; and 
     FIG. 4 is a bottom plan view thereof. 
     The broken line showing of a portion of a person&#39;s shoulder with the arm and fingers in FIG. 1 is for illustrative purposes only and forms no part of the claimed design.